Re: Filters for dialup ppp/slip/shell (fwd)

patrick@value.net
Mon, 9 Dec 1996 08:32:20 -0800 (PST)

On Sun, 8 Dec 1996, MegaZone wrote:

> Once upon a time Brian Kramer shaped the electrons to say...
> >What kind of filters are recommended if any on a portmaster with dialup
> >users using slip or ppp?
>
> There is no recommended filter. Filters are only used *if* a site feels
> they need them, and then they are customized for each site's needs.

I would disagree. *ALL* ISP's should include filters against source
address spoofing, which makes it more difficult to perform denial of
service attacks like the recent SYN attacks.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
Patrick Greenwell (510) 943-5769 voice
Systems Administrator (510) 210-2000 modem
Value Net, Inc. (510) 943-1708 fax
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/